diff --git a/kdoorpi.py b/kdoorpi.py
index 496bd03..22eb730 100644
--- a/kdoorpi.py
+++ b/kdoorpi.py
@@ -69,14 +69,13 @@ class DoorController:
 
     def wiegand_callback(self, bits, value):
         uid_h = hash_uid(value, self.uid_hash)
-        logging.debug("hash %s", uid_h)
+        logging.debug(f"hash {uid_h}")
         if uid_h in self.uids:
-            logging.info("Opening door for UID hash trail %s", uid_h[-10:])
+            logging.info(f"Opening door for UID hash trail {uid_h[-10:]}")
             self.wiegand.open_door()
             success = True
         else:
-            logging.info("Access card not in allow list, hash trail %s",
-                         uid_h[-10:])
+            logging.info(f"Access card not in allow list, hash trail {uid_h[-10:]}")
             success = False
         data = {
             "uid": value,
@@ -127,9 +126,10 @@ class DoorController:
 
 if __name__ == "__main__":
     DoorController(
-        os.environ["KDOORPI_DOOR"],
-        os.environ["KDOORPI_API_ALLOWED"],
-        os.environ["KDOORPI_API_LONGPOLL"],
-        os.environ["KDOORPI_API_SWIPE"],
-        os.environ["KDOORPI_API_KEY"],
-        os.environ["KDOORPI_UID_SALT"])
+        door=os.environ["KDOORPI_DOOR"],
+        api_allowed=os.environ["KDOORPI_API_ALLOWED"],
+        api_longpoll=os.environ["KDOORPI_API_LONGPOLL"],
+        api_swipe=os.environ["KDOORPI_API_SWIPE"],
+        api_key=os.environ["KDOORPI_API_KEY"],
+        uid_hash=os.environ["KDOORPI_UID_SALT"],
+    )
diff --git a/wiegand.py b/wiegand.py
index 7d4782e..d8e0073 100644
--- a/wiegand.py
+++ b/wiegand.py
@@ -79,12 +79,11 @@ class Decoder:
                                            bits))).rstrip()
 
         except ValueError:
-            logging.error("Failed to convert binary to hex: %s" % self.items)
+            logging.error(f"Failed to convert binary to hex: {self.items}")
             return False
 
         except Exception as e:
-            logging.error("Wiegand convert error (raw: %s): %s" % (
-                self.items, e))
+            logging.error(f"Wiegand convert error (raw: {self.items}): {e}")
             return False
 
     def _cb(self, gpio_pin, level, tick):
@@ -99,7 +98,7 @@ class Decoder:
                 if self.in_code:
                     self.bits += 1
                 else:
-                    logging.debug("Wiegand data transfer start")
+                    logging.debug(f"Wiegand data transfer start")
                     self.bits = 1
                     self.items = ""
                     self.in_code = True
@@ -133,16 +132,13 @@ class Decoder:
                             if hex:
                                 self.callback(self.bits, hex)
                         else:
-                            logging.error("Expected 26 bits, but got %i: %s" %
-                                          (self.bits, self.items))
+                            logging.error(f"Expected 26 bits, but got {self.bits:d}: {self.items}")
 
         except Exception as e:
-            logging.error("Wiegand callback error: %s" % e)
+            logging.error(f"Wiegand callback error: {e}")
 
     def button_cb(self,  gpio_pin, level, tick):
-        print("button: gpio_pin:{}, level:{}, tick:{}".format(gpio_pin,
-                                                              level,
-                                                              tick))
+        print(f"button: gpio_pin:{gpio_pin}, level:{level}, tick:{tick}")
 
     def open_door(self):
         self.pi.write(self.door_pin, 1)